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Applying Ripple Consensus model in Bitcoin Development & Technical Discussion
In case you do not aware, checkpoints (https://github.com/bitcoin/bitcoin/blob/m…
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n/a | Peter Todd | February 15, 2013, 03:13:20 AM |
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Blockchain.info coin mixer TOTAL RIPOFF Service Discussion
I am not adverse to lowering the fees. Those of you who feel a 1.5% fee is too h…
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n/a | Peter Todd | February 13, 2013, 11:41:12 AM |
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coinbase.com sending unconfirmed? Huge risk? Service Discussion
Wow! It surprises me how many people are willing to accept a long chain of uncon…
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n/a | Peter Todd | February 13, 2013, 11:33:08 AM |
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coinbase.com sending unconfirmed? Huge risk? Service Discussion
FWIW one way this may have happened is if they accepted one (or possibly two) co…
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n/a | Peter Todd | February 13, 2013, 02:35:10 AM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
QuoteIn a radix tree what you would do is first add each transaction to the tree…
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n/a | Peter Todd | February 13, 2013, 12:00:19 AM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
This requires the tree to be completely regenerated for each block, since the ha…
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n/a | Peter Todd | February 12, 2013, 08:11:04 PM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
Actually, here is an idea that could work: rather than making the generated UTXO…
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n/a | Peter Todd | February 12, 2013, 04:05:39 PM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
You can't make that assumption because an attacker might create a bunch of trans…
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n/a | Peter Todd | February 12, 2013, 03:20:15 PM |
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Purchasing fidelity bonds by provably throwing away bitcoins Development & Technical Discussion
Just to jump in and agree with Mike; I would guess the Foundation would prefer n…
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n/a | Peter Todd | February 12, 2013, 02:59:43 PM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
Have you considered that since the hashes are well distributed, you could mostly…
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n/a | Peter Todd | February 12, 2013, 02:46:25 PM |
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Creating Bitcoin passports using sacrifices Development & Technical Discussion
QuoteIs this really an issue? Well, I think the the question really is why would…
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n/a | Peter Todd | February 11, 2013, 09:31:51 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
I've quite successfully double-spent non-final transactions by just putting a re…
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n/a | Peter Todd | February 11, 2013, 06:33:54 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
nLockTime isn't killed "for good", it's just considered non-standard so the defa…
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n/a | Peter Todd | February 11, 2013, 04:27:47 AM |
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Creating Bitcoin passports using sacrifices Development & Technical Discussion
Someone else should chime in with the math to work it out explicitly - I know wa…
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n/a | Peter Todd | February 11, 2013, 04:12:10 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
Gavin's pull request looks like it is disabling a feature needed by transaction…
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n/a | Peter Todd | February 11, 2013, 12:37:29 AM |
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[BOUNTY] 200 BTC for lightweight colored coin client(s) Project Development
Have you seen my post on fidelitybonds and contracts? Fidelity bonds are a close…
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n/a | Peter Todd | February 08, 2013, 07:25:05 AM |
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Creating Bitcoin passports using sacrifices Development & Technical Discussion
Hmm. I'm not sure this undermines my argument I never heard of a "bonded guard"…
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n/a | Peter Todd | February 06, 2013, 02:27:23 AM |
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Creating Bitcoin passports using sacrifices Development & Technical Discussion
I posted my first draft of something approaching a proper tech spec for this fid…
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n/a | Peter Todd | February 05, 2013, 01:16:26 AM |
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what is -checkblocks for, and why does it default so high? Development & Technical Discussion
FWIW the default has been reduced to 288 blocks (2 days) for 0.8: https://github…
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n/a | Peter Todd | February 04, 2013, 08:53:42 PM |
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Creating Bitcoin passports using sacrifices Development & Technical Discussion
FWIW I posted about consecutive miners fees (and the whole bank idea) months ago…
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n/a | Peter Todd | February 02, 2013, 01:08:51 PM |
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Odd testnet block Development & Technical Discussion
Two things are going on: block explorer does t understand multisig transactions,…
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n/a | Peter Todd | February 02, 2013, 04:47:55 PM |
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New Bitcoin vulnerability: A transaction that takes at least 3 minutes to verify Development & Technical Discussion
I respect very much all the hard work all the core devs do designing and writing…
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n/a | Peter Todd | February 02, 2013, 02:10:02 AM |
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New Bitcoin vulnerability: A transaction that takes at least 3 minutes to verify Development & Technical Discussion
Has anyone tried this on testnet yet?EDIT: and while we're at it, you realize ho…
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n/a | Peter Todd | January 31, 2013, 07:04:41 PM |
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A simple definition of "lost" coins Bitcoin Discussion
As an example 157i5gK7iN4bNAN39Ahuoiq6Tx5TaQukTE is owned by Hal, who has public…
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n/a | Peter Todd | January 31, 2013, 06:56:49 PM |
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Purchasing fidelity bonds by provably throwing away bitcoins Development & Technical Discussion
We can have list of 20 trustworthy organization like wikipedia, btc foundation,…
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n/a | Peter Todd | January 31, 2013, 02:44:33 PM |
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error message: "Unknown transaction type found" Development & Technical Discussion
Basically, when listtransactions runs, it looks at every output of every transac…
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n/a | Peter Todd | January 31, 2013, 02:29:10 PM |
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Enable OP-Codes & Scripting? Development & Technical Discussion
They are enabled already on Testnet so you can try your experiments there.
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n/a | Peter Todd | January 30, 2013, 01:36:31 PM |
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[SUCCESS] Double Spend against a satoshidice loss Development & Technical Discussion
That is a very good point! Anybody at all can create modified versions of any t…
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n/a | Peter Todd | January 30, 2013, 11:15:03 AM |
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[SUCCESS] Double Spend against a satoshidice loss Development & Technical Discussion
So the input wasn't even re-signed. The old signature was simply left-padded wi…
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n/a | Peter Todd | January 30, 2013, 12:15:46 AM |
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Let's Embrace BTC Trusted Timestamping Development & Technical Discussion
Check out chronobit. The merged mining system allows arbitrary numbers of alt-c…
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n/a | Peter Todd | January 28, 2013, 03:31:18 PM |
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Let's Embrace BTC Trusted Timestamping Development & Technical Discussion
Bitcoin timestamping has one huge advantage over other services; it is plainly a…
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n/a | Peter Todd | January 28, 2013, 02:55:32 PM |
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Let's Embrace BTC Trusted Timestamping Development & Technical Discussion
Is there a lot of demand for timestamping? Are people willing to pay for it?Lots…
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n/a | Peter Todd | January 28, 2013, 02:49:23 PM |
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Let's Embrace BTC Trusted Timestamping Development & Technical Discussion
I suspect you built your system in significantly less time than I did mine. Not…
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n/a | Peter Todd | January 28, 2013, 01:22:55 PM |
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Let's Embrace BTC Trusted Timestamping Development & Technical Discussion
Hidden on my webserver, of course. I tested the interface and the automation (b…
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n/a | Peter Todd | January 28, 2013, 12:52:35 PM |
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Let's Embrace BTC Trusted Timestamping Development & Technical Discussion
Agreed. This isn't something that should be in the reference client, nor widely…
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n/a | Peter Todd | January 28, 2013, 12:04:01 PM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
Yup, that's another known attack. bitcoinj is going to support recursive analysi…
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n/a | Peter Todd | January 26, 2013, 07:15:30 PM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
And diceoncrack fell on to this attack, it seems... https://bitcointalk.org/inde…
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n/a | Peter Todd | January 26, 2013, 05:18:18 PM |
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[ANN] cbitcoin 2.0 - A Bitcoin Library in C Project Development
OK, since you aren't the only one to complain, I've changed the title.Thanks, it…
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n/a | Peter Todd | January 24, 2013, 12:51:02 PM |
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2013-01-23 motherboard.vice.com - Ripple, a Peer-to-Peer Financing Network, Coul Press
If Ripple succeeds I think it'll turn out to be much more useful for business-to…
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n/a | Peter Todd | January 24, 2013, 11:03:36 AM |
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smart property as an alternative to invoicing Development & Technical Discussion
I'm afraid you're cargo-culting this. It doesn't matter how much hard work they…
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n/a | Peter Todd | January 22, 2013, 01:38:47 PM |
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Inflation-proofing via fraud notices Development & Technical Discussion
Well, the question becomes how did you find out about the transaction in the fir…
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n/a | Peter Todd | January 22, 2013, 12:45:28 PM |
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smart property as an alternative to invoicing Development & Technical Discussion
What if there was bitmitt.net which looks exactly like bitmit.net, but doesn't s…
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n/a | Peter Todd | January 22, 2013, 12:23:46 PM |
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Inflation-proofing via fraud notices Development & Technical Discussion
SPV can't check fraud challenges at all other than to assume they are valid unle…
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n/a | Peter Todd | January 22, 2013, 12:13:30 PM |
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Inflation-proofing via fraud notices Development & Technical Discussion
SPV can't check fraud challenges at all other than to assume they are valid unle…
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n/a | Peter Todd | January 22, 2013, 10:57:01 AM |
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Inflation-proofing via fraud notices Development & Technical Discussion
Here's sort of a recent continuation of that discussion gmaxwell pointed you to…
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n/a | Peter Todd | January 22, 2013, 03:48:45 AM |
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colored bitcoin tech discussion Development & Technical Discussion
EDIT: etotheipi, never mind, I can't read... (took mixing as talking about divis…
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n/a | Peter Todd | January 21, 2013, 10:38:05 PM |
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Inflation-proofing via fraud notices Development & Technical Discussion
(cleaned up repost of https://bitcointalk.org/index.php?topic=106449.msg1469608#…
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n/a | Peter Todd | January 22, 2013, 12:44:32 AM |
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Shouldn't we start using safer keys from now instead of waiting for problems? Bitcoin Discussion
Guys, stop worrying about the maximum blocksize. There are lots of ways to do of…
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n/a | Peter Todd | January 17, 2013, 10:35:20 AM |
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What benefit does leaving my client on provide to the network? Bitcoin Technical Support
So it's effectively destroying some bitcoins.Correct. This is one of the many p…
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n/a | Peter Todd | January 10, 2013, 02:56:53 PM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
I'd really like to thank retep and Mike for their responsible disclosure and hel…
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n/a | Peter Todd | January 15, 2013, 11:32:29 PM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
From a site that swaps unconfirmed coins for confirmed coins. That is not at all…
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n/a | Peter Todd | January 14, 2013, 08:08:39 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
Unless you're talking about a totally different issue to the one reported to the…
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n/a | Peter Todd | January 13, 2013, 07:34:25 PM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
If you do not accept zero-confirmation transactions this vulnerability does not…
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n/a | Peter Todd | January 11, 2013, 06:14:37 PM |
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Speeding up signature verification Development & Technical Discussion
If having to wait ten minutes to an hour is what makes you not want to use Bitco…
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n/a | Peter Todd | January 13, 2013, 12:11:38 PM |
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Speeding up signature verification Development & Technical Discussion
To answer your question "Why risk it?": To not lose more and more potential new…
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n/a | Peter Todd | January 13, 2013, 11:30:17 AM |
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Speeding up signature verification Development & Technical Discussion
Since nearly 2 years has gone but no activity for this "batch verification"-algo…
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n/a | Peter Todd | January 13, 2013, 10:24:21 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
This debate is pointless in the absence of context regarding the transaction in…
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n/a | Peter Todd | January 13, 2013, 10:06:10 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
Is this something completely new?Let me rephrase that. Are you aware of this top…
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n/a | Peter Todd | January 12, 2013, 04:51:21 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
Is this finding based on work backed by the Bitcoin Foundation? Do the Foundatio…
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n/a | Peter Todd | January 12, 2013, 04:15:12 AM |
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SERIOUS VULNERABILITY related to accepting zero-confirmation transactions Bitcoin Discussion
Users of the Bitcoin-Qt GUI are not affected.That's unfortunately not true. Bitc…
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n/a | Peter Todd | January 12, 2013, 02:33:35 AM |
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Help wanted: QA test spendfrom.py (coin control utility) Development & Technical Discussion
Dunno why github says 'authored 6 days ago', commit 2e922 was pushed yesterday a…
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n/a | Peter Todd | January 10, 2013, 02:33:27 PM |
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Help wanted: QA test spendfrom.py (coin control utility) Development & Technical Discussion
Thanks for helping test! Latest version fixes the p2sh issue.I think you haven'…
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n/a | Peter Todd | January 10, 2013, 01:32:24 PM |
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I entered the police station as a suspect. When I left the officer loved Bitcoin Legal
I agree that the courts need to understand the issue, but involuntarily receivin…
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n/a | Peter Todd | January 10, 2013, 01:10:50 AM |
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I entered the police station as a suspect. When I left the officer loved Bitcoin Legal
While that is a nice touch from a UI / accessibility point of view, it's not qui…
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n/a | Peter Todd | January 09, 2013, 06:24:06 PM |
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getting the input addresses of a transaction. Development & Technical Discussion
If you add the option 1 after the transaction hash in your getrawtransaction cal…
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n/a | Peter Todd | January 08, 2013, 01:09:11 PM |
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Purchasing fidelity bonds by provably throwing away bitcoins Development & Technical Discussion
Oh, and where I say "hash of a transaction" in the above, replace that with "has…
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n/a | Peter Todd | January 08, 2013, 09:50:18 AM |
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scathing incitement of the FED's settlement in the HSBC money laundering case Bitcoin Discussion
Excellent post Mike.You know, by pointing to HSBC and saying they failed to stop…
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n/a | Peter Todd | January 08, 2013, 09:37:42 AM |
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addresses in vout in rawtransactions Development & Technical Discussion
It's for multisig transactions where more than one address can/is required to re…
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n/a | Peter Todd | January 08, 2013, 09:14:27 AM |
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Purchasing fidelity bonds by provably throwing away bitcoins Development & Technical Discussion
For stuff like looking for forum sock puppets, sure, donations are ok. But in th…
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n/a | Peter Todd | January 08, 2013, 07:38:43 AM |
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Purchasing fidelity bonds by provably throwing away bitcoins Development & Technical Discussion
EDIT: changed titleCode:0100000001d1b311d665b94ad270007deeaa696d487ea0bcd2d11e2c…
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n/a | Peter Todd | January 05, 2013, 04:15:11 AM |
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bitcoin/application/user-program supporting own scripts available? Development & Technical Discussion
One of them is that some goverment (probably USA) will subvert all observable ti…
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n/a | Peter Todd | January 06, 2013, 06:21:17 PM |
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Provably throwing away Bitcoins Development & Technical Discussion
Ok, I see where you are going, but personally I still think the destruction of c…
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n/a | Peter Todd | January 06, 2013, 06:50:20 PM |
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Delayed transactions (using nTimeLock) Development & Technical Discussion
Speaking of, here is an exercise for you: why must the locktime be an absolute n…
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n/a | Peter Todd | January 06, 2013, 06:36:54 PM |
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bitcoin/application/user-program supporting own scripts available? Development & Technical Discussion
Not just 'not very important' but would be actually against the goals. You point…
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n/a | Peter Todd | January 06, 2013, 06:33:39 PM |
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Provably throwing away Bitcoins Development & Technical Discussion
Personally, I think jl2012 is right, throwing away money wouldn't be a popular w…
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n/a | Peter Todd | January 06, 2013, 04:01:50 PM |
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bitcoin/application/user-program supporting own scripts available? Development & Technical Discussion
Obviously we understand "sane" much different. And a time stamp, say < 30 sec of…
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n/a | Peter Todd | January 06, 2013, 03:43:28 PM |
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Delayed transactions (using nTimeLock) Development & Technical Discussion
Speaking of, here is an exercise for you: why must the locktime be an absolute n…
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n/a | Peter Todd | January 06, 2013, 08:36:43 AM |
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Provably throwing away Bitcoins Development & Technical Discussion
The same could be achieved by donation to well-recognized organizations: bitcoin…
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n/a | Peter Todd | January 06, 2013, 05:28:30 AM |
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Provably throwing away Bitcoins Development & Technical Discussion
Burning banknotes for reputation? No way.....It's just game theory. Lets suppose…
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n/a | Peter Todd | January 06, 2013, 03:48:01 AM |
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Delayed transactions (using nTimeLock) Development & Technical Discussion
I'm still a bit confused, because right after sending them, I could spend the…
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n/a | Peter Todd | January 05, 2013, 08:15:49 PM |
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bitcoin/application/user-program supporting own scrips availible? Development & Technical Discussion
HiAre there bitcoin-applications available which support the bitcoin-qt/bitcoin…
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n/a | Peter Todd | January 05, 2013, 07:02:22 AM |
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Block 0 created Jan 3 2009 - 4 year anniversary Bitcoin Discussion
Also it's interesting how the difficulty of the hash satoshi found for the first…
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n/a | Peter Todd | December 24, 2012, 08:48:00 PM |
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zero transaction fee payments Bitcoin Technical Support
Can a transaction be included into the same block that some of it's input transa…
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n/a | Peter Todd | December 21, 2012, 04:35:54 PM |
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Smeared private key on bitcoin bill. Bitcoin Discussion
If you give up, at least post a scan of the bill here on the forums. Maybe someo…
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n/a | Peter Todd | December 21, 2012, 03:13:56 PM |
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Core Development Status Report #2 - Discussion Bitcoin Discussion
It's nice to have decentralized node and wallet software that people use and kee…
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n/a | Peter Todd | December 21, 2012, 03:11:38 PM |
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Smeared private key on bitcoin bill. Bitcoin Discussion
If you give up, at least post a scan of the bill here on the forums. Maybe someo…
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n/a | Peter Todd | December 21, 2012, 02:30:43 PM |
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Correct header data for block 1 Development & Technical Discussion
FWIW I wrote some Python code that recreates the raw hex block header, the part…
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n/a | Peter Todd | December 19, 2012, 12:22:35 PM |
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Delay BlockReward=0 Forever Development & Technical Discussion
I still think that we will switch up to 128 bit values to match future CPU-width…
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n/a | Peter Todd | December 18, 2012, 11:56:31 PM |
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New incorruptible time-stamp source? Development & Technical Discussion
Of course, I haven't actually tried it for this. But I've absolutely done correl…
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n/a | Peter Todd | December 17, 2012, 07:40:56 PM |
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Is this idea to counter lost bitcoins possible? Development & Technical Discussion
Meh. 2^56 operations would still be roughly the equivelent of difficulty 16 mil…
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n/a | Peter Todd | December 17, 2012, 01:13:18 PM |
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Is this idea to counter lost bitcoins possible? Development & Technical Discussion
Please provide a single example. It took roughly 15 years for MD5 to go from th…
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n/a | Peter Todd | December 17, 2012, 12:35:19 PM |
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Is this idea to counter lost bitcoins possible? Development & Technical Discussion
What would be elite about this group. If ECDSA is broken wide open without warn…
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n/a | Peter Todd | December 17, 2012, 11:45:14 AM |
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Is this idea to counter lost bitcoins possible? Development & Technical Discussion
I think we need to consider agreeing that some time after the signature algorith…
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n/a | Peter Todd | December 17, 2012, 11:24:39 AM |
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Is this idea to counter lost bitcoins possible? Development & Technical Discussion
I would like to mention in this context something which does not get the attenti…
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n/a | Peter Todd | December 17, 2012, 01:00:45 AM |
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PROPOSAL: Move all "lost bitcoins" threads to "Alternate cryptocurrencies" Development & Technical Discussion
Rational: Any attempt to "recover" lost bitcoins that involves rules like coin e…
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n/a | Peter Todd | December 16, 2012, 05:19:59 PM |
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Toronto Bitcoin Meetup #3 - Saturday, January 12, 2013 4pm Meetups
The "intro to bitcoin" talk is one I've given once before; it's really a layman'…
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n/a | Peter Todd | December 15, 2012, 05:32:47 PM |
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New incorruptible time-stamp source? Development & Technical Discussion
You need to think a bit harder about what exactly you are proposing and exactly…
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n/a | Peter Todd | December 14, 2012, 08:30:21 PM |
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How to detect the change output? Development & Technical Discussion
Yes, I saw that project, I'm curious to try it out myself, although I'll have to…
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n/a | Peter Todd | December 14, 2012, 07:22:34 PM |
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New incorruptible time-stamp source? Development & Technical Discussion
You need to think a bit harder about what exactly you are proposing and exactly…
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n/a | Peter Todd | December 14, 2012, 06:58:49 PM |
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How to detect the change output? Development & Technical Discussion
I think Hal's donation wallet address has a flaw. The problem is that balance()…
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n/a | Peter Todd | December 14, 2012, 06:43:47 PM |
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